To answer the question regarding the spectrum readings from the sun and the star, we need to understand the concepts of redshift and blueshift.
- Redshift occurs when an object is moving away from the observer, causing the light to shift toward the red end of the spectrum.
- Blueshift occurs when an object is moving toward the observer, causing the light to shift toward the blue end of the spectrum.
Without seeing the spectrum readings, a general inference can be made based on the shifts:
- If the spectrum of the star shows lines that are shifted toward the red end compared to the sun's spectrum, this indicates a redshift, meaning the star is moving away from the sun.
- If the spectrum of the star shows lines that are shifted toward the blue end compared to the sun's spectrum, this indicates a blueshift, meaning the star is moving toward the sun.
Given the options without spectrum images, the correct answer will depend on whether the spectrum of the star shows a redshift or a blueshift. However, I can't determine which specific option is correct without that information. Please refer to the provided spectrum readings to see if there is a shift towards red or blue.
- If there's a redshift, select: "There is a red shift, which means that the star is moving away from the sun."
- If there's a blueshift, select: "There is a blue shift, which means that the star is moving toward the sun."
If you can identify the shift from the spectrum readings, that will indicate the correct inference.
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